19819950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{229}}^1\times {\mathrm{577}}^1$

素因数の和:821

約数の個数: 48

約数和(自身を含む): 49453680

約数和(自身を除く): 29633730

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 229, 458, 577, 687, 1145, 1154, 1374, 1731, 2290, 2885, 3435, 3462, 5725, 5770, 6870, 8655, 11450, 14425, 17175, 17310, 28850, 34350, 43275, 86550, 132133, 264266, 396399, 660665, 792798, 1321330, 1981995, 3303325, 3963990, 6606650, 9909975, 19819950]

約数ペア:

[(1, 19819950), (2, 9909975), (3, 6606650), (5, 3963990), (6, 3303325), (10, 1981995), (15, 1321330), (25, 792798), (30, 660665), (50, 396399), (75, 264266), (150, 132133), (229, 86550), (458, 43275), (577, 34350), (687, 28850), (1145, 17310), (1154, 17175), (1374, 14425), (1731, 11450), (2290, 8655), (2885, 6870), (3435, 5770), (3462, 5725)]